Molarity (M)

$$M = \frac{\text{Moles of Solute}}{\text{Volume of Solution in Liters}} = \frac{W_B \times 1000}{M_B \times V \text{ (mL)}}$$

Concept: Measures the concentration of a solute in a solution, defined as the number of moles of solute per liter of solution (temperature-dependent).

Notation:

• $$M$$ = Molarity ($$\text{mol L}^{-1}$$ or $$\text{M}$$);
• $$W_B$$ = Mass of solute ($$\text{g}$$);
• $$M_B$$ = Molar mass of solute ($$\text{g mol}^{-1}$$);
• $$V$$ = Volume of solution ($$\text{mL}$$).